For a six year old student using Genesis through Deuteronomy, here's how I would set up the books (just for an idea). This is based on doing Bible History on M-W, Egypt on Th, Geography on F.
Genesis through Deuteronomy handbook, start date of first day of school, scheduled for M-F
True Story of Noah's Ark, start date of one week after first day of school, scheduled for M
Uncle Josh's Outline Map Book (or just "Map Drill"), Africa map, start date of two weeks after first day of school, scheduled for F (I'm assuming you're not doing Letters from Egypt for the 6yo.)
Now, for Oxford First Ancient History, since it will be interspersed between other readings, you could create a new resource with just the sections you will read (2A, 2B, 3A, 3B, etc or even the readings' titles, if you prefer). That way you can select which sections you want to schedule first; then schedule Pyramid to start after that one; then schedule the resource's next sections to start after Pyramid. Does that make sense? All of those would be scheduled for Thursdays.
Clear as mud?